Natural gas is widely viewed as a clean fuel, but methane, its main component, is a powerful greenhouse gas. Two experts propose a plan for detecting and cutting methane leaks across North America.

Canadian Foreign Affairs Minister Chrystia Freeland with U.S. Trade Representative Robert Lighthizer, right, and Mexico’s Secretary of Economy Ildefonso Guajardo Villarrea, deliver statements to the media during the sixth round of negotiations for a new North American Free Trade Agreement in Montreal in January 2018.
THE CANADIAN PRESS/Graham HughesFebruary 5, 2018

The North American Free Trade Agreement forced Mexico into a crisis that turned into an opportunity. Could the same happen again?

Mexico’s new app makes it a snap for political independents to collect voter signatures — unless, of course, their supporters don’t have smartphones or live in rural areas without reliable internet.
ReutersJanuary 31, 2018

Mexico may celebrate its mixed-race heritage, but a new study shows that racism is powerful there. Darker-skinned Mexicans earn less and finish fewer years of schooling than white citizens.

Parents find new methods for learning math challenging, as they are different. But they work for children, building upon what they have learned about numbers and reinforcing the strategy they use for reading.
(Shutterstock)November 29, 2017

Australia has few public rituals around death, leaving people to figure out how to process grief alone. But Mexico's Day of the Dead, with its focus on art and community, could help us cope better.

In this 2013 photo, a resident of Tijuana, Mexico, holds onto the bars that make up the border wall separating the U.S. and Mexico near San Diego. President Donald Trump is proposing to dramatically expand the wall.
(AP Photo/Gregory Bull, File)October 24, 2017

Thousands of North Americans travel to Mexico to eat, drink, shop and get cheap and fast dental care. Meanwhile, local populations suffer racism, poor working conditions and inadequate health care.

Undocumented migrants are among those helping to rebuild the hardest-hit areas of Oaxaca state, where federal aid has been slow to trickle down.
Presidencia de la República Mexicana CC-by-2.0October 11, 2017